【单选题】–Do you know the boy ___ is standing under the tree? -Yes, he is my friend, Peter.
【单选题】–Who is the tallest boy? –It ______ be John. Because John is of medium height..
【单选题】–Who’s that boy? –Liang Bo. He is _____ very popular singer in Voice of China.
【单选题】– ______ is the boy with a pair of glasses? –My brother, John.